While capturing solar energy for commercial purposes,we use:

In the figure shown,the image of a real object $O$ is formed at point $I$. $AB$ is the principal axis of the mirror. The mirror must be:

Suppose that the lower half of the concave mirror's reflecting surface in the figure is covered with an opaque (non-reflective) material. What effect will this have on the image of an object placed in front of the mirror?

In the case of spherical mirrors,the images formed on the side of the object and images formed on the opposite side are respectively

$A$ convex mirror of radius of curvature $30 \,cm$ forms an image that is half the size of the object. The object distance is: (in $\,cm$)

Obtain the mirror equation for the real image formed by a concave mirror.